| 摘要: |
| 采用C 18 固相萃取柱富集，乙酸乙酯、二氯甲烷和丙酮混合溶剂以1∶1∶1比例洗脱、自动固相萃取的前处理方法，气相色谱质谱连用，分析水源水中33种半挥发性有机物，并与液液萃取前处理方法进行比较。结果表明：在500~5 000 μg/L范围内，33种SVOC线性良好，相关系数＞0.990，回收率为70.1%~114.2%，相对标准偏差为2.4%~13.4%，方法检出限为0.06~0.25 μg/L；而且该方法较液液萃取，检出样品种类多。适用于饮用水源水中半挥发性有机物的监测。 |
| 关键词: 固相萃取 GCMS 水源水 半挥发性有机物 |
| DOI： |
| 分类号:X832；O657.63 |
| 文献标识码:B |
| 基金项目: |
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| Analysis of Trace Semi volatile Organic Compounds from Drinking Source Water Using SPE–GCMS Technique |
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WANG Haitang， LIU Hao
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Xuzhou Environmental Monitoring Center， Xuzhou， Jiangsu 221006， China
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| Abstract: |
| A GCMS method was established for detecting 33 trace semi volatile organic compounds （SVOCs） in drinking source water. Samples were treated with C18 automated solid phase extraction （SPE） and eluted by a mixed solvent of CH2Cl2， ethyl acetate and acetone. This method was compared with the liquid liquid extraction （LLE） pretreatment method. The results showed that good linearity was obtained in the range of 500~5000 μg/L for 33 SVOC with the correlation coefficient higher than 0.990. The recovery was between 70.1% and 114.2%. The relative standard deviation was between 2.4% and 13.4%. The method detection limit was between 0.06 and 0.25 μg/L. Compared with LLE， this method could detect more kinds of samples. It was suitable for monitoring SVOC in drinking water. |
| Key words: SPE GCMS Source water Semi volatile organic compounds |
